Make these inversely proportional. 1. 9:4 = 3:N
2. N:2 = 10:6
3. 6:N = 21:2
BADLY needed thanks for answering :DDD

For one history test, keith had to answer 40 questions. of these 40 questions, keith answered 28 of them correctly. what percent did keith get on his history test? round your answer to the nearest tenth if necessary

Ling listed all of the factors of a mystery number: 1,2,4,8,16,32 what is the mystery number?

Meghan has created a diagram of her city with her house, school, store, and gym identified. a. how far is it from the gym to the store? b. meghan also wants to walk to get some exercise, rather than going to the gym. she decides to walk along arc ab. how far will she walk? round to 3 decimal places.